/* ===========================
   WELCORE — Main Stylesheet
   =========================== */

/* --- Reset & Variables --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --deep: #0A192F;
  --deep-mid: #0f2240;
  --deep-light: #152a4a;
  --cyan: #00CFD5;
  --cyan-dim: rgba(0, 207, 213, 0.15);
  --cyan-glow: rgba(0, 207, 213, 0.4);
  --white: #FFFFFF;
  --gray: #8892b0;
  --light-gray: #ccd6f6;
}
html { scroll-behavior: smooth; }
body { font-family: 'Outfit', sans-serif; background: var(--deep); color: var(--light-gray); overflow-x: hidden; line-height: 1.65; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--deep); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 3px; }

/* --- Layout --- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 clamp(24px, 5vw, 80px); }
section { padding: 120px 0; }

/* --- Section Typography --- */
.section-label { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; letter-spacing: 3px; text-transform: uppercase; color: var(--cyan); margin-bottom: 12px; display: flex; align-items: center; gap: 12px; }
.section-label::before { content: ''; width: 32px; height: 1px; background: var(--cyan); }
.section-title { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 700; color: var(--white); line-height: 1.15; margin-bottom: 24px; }
.section-desc { font-size: 1.05rem; color: var(--gray); max-width: 640px; line-height: 1.7; }

/* --- Animations --- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scanline { 0% { transform: translateY(-100%); } 100% { transform: translateY(100vh); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Header & Navigation --- */
header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; padding: 20px 0; transition: all 0.4s ease; background: transparent; }
header.scrolled { background: rgba(10, 25, 47, 0.92); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(0, 207, 213, 0.1); padding: 12px 0; }
nav { display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: 'JetBrains Mono', monospace; font-size: 1.5rem; font-weight: 700; color: var(--white); text-decoration: none; letter-spacing: 4px; display: flex; align-items: center; gap: 14px; position: relative; }
.logo .e-special { color: var(--cyan); }
.logo canvas { position: absolute; top: 50%; left: 0; transform: translateY(-50%); width: 300px; height: 60px; pointer-events: none; z-index: 0; }
.logo .logo-content { position: relative; z-index: 1; display: flex; align-items: center; gap: 14px; }
.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a { text-decoration: none; color: var(--gray); font-size: 0.85rem; font-family: 'JetBrains Mono', monospace; letter-spacing: 1px; transition: color 0.3s; position: relative; }
.nav-links a:hover { color: var(--cyan); }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--cyan); transition: width 0.3s; }
.nav-links a:hover::after { width: 100%; }
.nav-cta { padding: 8px 20px !important; border: 1px solid var(--cyan) !important; color: var(--cyan) !important; border-radius: 2px; }
.nav-cta:hover { background: var(--cyan-dim) !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1100; }
.hamburger span { width: 24px; height: 2px; background: var(--cyan); transition: all 0.3s; }

/* --- Hero Section --- */
#hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.hero-bg::before { content: ''; position: absolute; top: -50%; right: -20%; width: 800px; height: 800px; background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%); opacity: 0.15; animation: float 8s ease-in-out infinite; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(0,207,213,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0,207,213,0.03) 1px, transparent 1px); background-size: 60px 60px; }
.hero-scanline { position: absolute; width: 100%; height: 200px; background: linear-gradient(transparent, rgba(0,207,213,0.03), transparent); animation: scanline 8s linear infinite; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-tag { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--cyan); letter-spacing: 3px; text-transform: uppercase; margin-bottom: 24px; display: flex; align-items: center; gap: 10px; opacity: 0; animation: fadeUp 0.8s ease 0.2s forwards; }
.hero-title { font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 800; color: var(--white); line-height: 1.05; margin-bottom: 28px; opacity: 0; animation: fadeUp 0.8s ease 0.4s forwards; }
.hero-title span { color: var(--cyan); }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--gray); max-width: 600px; line-height: 1.7; margin-bottom: 48px; opacity: 0; animation: fadeUp 0.8s ease 0.6s forwards; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; opacity: 0; animation: fadeUp 0.8s ease 0.8s forwards; }
.hero-metrics { display: flex; gap: 48px; margin-top: 72px; opacity: 0; animation: fadeUp 0.8s ease 1s forwards; }
.metric-item { display: flex; flex-direction: column; align-items: center; text-align: center; }
.metric-label { font-size: 0.8rem; color: var(--gray); margin-top: 8px; }

/* --- Buttons --- */
.btn-primary { padding: 14px 36px; background: var(--cyan); color: var(--deep); font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; letter-spacing: 0.5px; transition: all 0.3s; text-decoration: none; font-family: 'Outfit', sans-serif; }
.btn-primary:hover { background: #00e8ef; box-shadow: 0 0 30px var(--cyan-glow); transform: translateY(-2px); }
.btn-outline { padding: 14px 36px; background: transparent; color: var(--cyan); font-weight: 500; font-size: 0.95rem; border: 1px solid var(--cyan); cursor: pointer; letter-spacing: 0.5px; transition: all 0.3s; text-decoration: none; }
.btn-outline:hover { background: var(--cyan-dim); transform: translateY(-2px); }

/* --- Expertise Section --- */
.expertise-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-top: 56px; }
.expertise-card { background: var(--deep-mid); border: 1px solid rgba(0,207,213,0.08); padding: 40px 32px; position: relative; overflow: hidden; transition: all 0.4s ease; }
.expertise-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); opacity: 0; transition: opacity 0.4s; }
.expertise-card:hover::before { opacity: 1; }
.expertise-card:hover { border-color: rgba(0,207,213,0.2); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.card-icon { width: 72px; height: 72px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; background: var(--cyan-dim); border: 1px solid rgba(0,207,213,0.12); }
.card-icon svg { width: 36px; height: 36px; stroke: var(--cyan); fill: none; stroke-width: 1.5; }
.card-title { font-size: 1.15rem; font-weight: 600; color: var(--white); margin-bottom: 12px; }
.card-text { font-size: 0.9rem; color: var(--gray); line-height: 1.65; }
.card-number { position: absolute; top: 20px; right: 24px; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(0,207,213,0.3); letter-spacing: 2px; }

/* --- Software Section --- */
#software { background: var(--deep-mid); }
.software-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 56px; border: 1px solid rgba(0,207,213,0.1); }
.software-item { padding: 48px 36px; border-right: 1px solid rgba(0,207,213,0.1); transition: all 0.4s; }
.software-item:last-child { border-right: none; }
.software-item:hover { background: rgba(0,207,213,0.03); }
.sw-num { font-family: 'JetBrains Mono', monospace; font-size: 3rem; font-weight: 700; color: rgba(0,207,213,0.1); line-height: 1; margin-bottom: 20px; }
.sw-title { font-size: 1.15rem; font-weight: 600; color: var(--white); margin-bottom: 16px; }
.sw-text { font-size: 0.9rem; color: var(--gray); line-height: 1.65; }

/* --- Analytics Section --- */
.analytics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 56px; }
.analytics-card { padding: 36px; background: linear-gradient(145deg, var(--deep-mid), var(--deep)); border: 1px solid rgba(0,207,213,0.08); transition: all 0.4s; }
.analytics-card:hover { border-color: var(--cyan); box-shadow: 0 0 40px rgba(0,207,213,0.08); }
.analytics-card .icon-line { width: 40px; height: 2px; background: var(--cyan); margin-bottom: 24px; }
.analytics-card h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 12px; font-weight: 600; }
.analytics-card p { font-size: 0.88rem; color: var(--gray); line-height: 1.65; }

/* --- Cases Section --- */
#cases { background: var(--deep-mid); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 56px; }
.case-card { position: relative; padding: 48px 36px; background: var(--deep); border: 1px solid rgba(0,207,213,0.08); overflow: hidden; transition: all 0.5s; }
.case-card::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--cyan), transparent); transform: scaleX(0); transform-origin: left; transition: transform 0.5s; }
.case-card:hover::after { transform: scaleX(1); }
.case-card:hover { transform: translateY(-6px); box-shadow: 0 24px 64px rgba(0,0,0,0.4); }
.case-tag { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--cyan); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 20px; }
.case-card h3 { font-size: 1.3rem; color: var(--white); margin-bottom: 16px; font-weight: 600; }
.case-card p { font-size: 0.9rem; color: var(--gray); line-height: 1.65; }

/* --- VED Section --- */
.ved-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 56px; }
.ved-card { padding: 40px 32px; border-left: 2px solid var(--cyan); background: var(--deep-mid); transition: all 0.4s; }
.ved-card:hover { background: var(--deep-light); transform: translateX(4px); }
.ved-card h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 14px; font-weight: 600; }
.ved-card p { font-size: 0.88rem; color: var(--gray); line-height: 1.65; }

/* --- Why Section --- */
#why { background: var(--deep-mid); }
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-top: 56px; }
.why-card { display: flex; gap: 24px; padding: 36px; background: var(--deep); border: 1px solid rgba(0,207,213,0.06); transition: all 0.4s; }
.why-card:hover { border-color: rgba(0,207,213,0.2); }
.why-icon { flex-shrink: 0; width: 72px; height: 72px; display: flex; align-items: center; justify-content: center; background: var(--cyan-dim); border: 1px solid rgba(0,207,213,0.15); }
.why-icon svg { width: 32px; height: 32px; stroke: var(--cyan); fill: none; stroke-width: 1.5; }
.why-card h3 { font-size: 1.05rem; color: var(--white); margin-bottom: 8px; font-weight: 600; }
.why-card p { font-size: 0.88rem; color: var(--gray); line-height: 1.6; }

/* --- Industries Section --- */
.industries-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 56px; align-items: start; }
.industries-text blockquote { font-size: 1.15rem; font-style: italic; color: var(--light-gray); border-left: 3px solid var(--cyan); padding-left: 20px; margin-bottom: 40px; line-height: 1.6; }
.industry-list { display: flex; flex-direction: column; gap: 20px; }
.industry-item { display: flex; gap: 16px; align-items: flex-start; }
.ind-dot { flex-shrink: 0; width: 8px; height: 8px; background: var(--cyan); margin-top: 8px; }
.industry-item h4 { font-size: 1rem; color: var(--white); margin-bottom: 4px; font-weight: 600; }
.industry-item p { font-size: 0.85rem; color: var(--gray); line-height: 1.55; }
.tech-cycle { background: var(--deep-mid); border: 1px solid rgba(0,207,213,0.1); padding: 48px; }
.cycle-title { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; letter-spacing: 2px; color: var(--cyan); text-transform: uppercase; margin-bottom: 28px; }
.cycle-step { display: flex; align-items: center; gap: 20px; padding: 18px 0; border-bottom: 1px solid rgba(0,207,213,0.06); }
.cycle-step:last-child { border-bottom: none; }
.step-num { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--cyan); width: 32px; flex-shrink: 0; }
.step-line { flex-grow: 1; height: 1px; background: linear-gradient(90deg, rgba(0,207,213,0.3), transparent); }
.step-text { font-size: 0.9rem; color: var(--light-gray); flex-shrink: 0; }

/* --- Contact Section --- */
#contact { background: var(--deep-mid); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 56px; }
.contact-info h3 { font-size: 1.5rem; color: var(--white); margin-bottom: 24px; font-weight: 600; }
.contact-detail { display: flex; gap: 16px; align-items: center; margin-bottom: 20px; }
.contact-detail svg { width: 28px; height: 28px; stroke: var(--cyan); fill: none; stroke-width: 1.5; flex-shrink: 0; }
.contact-detail span { color: var(--gray); font-size: 0.95rem; }
.contact-detail a { color: var(--cyan); text-decoration: none; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: flex; gap: 16px; }
.form-row > * { flex: 1; }
.contact-form input, .contact-form textarea { background: var(--deep); border: 1px solid rgba(0,207,213,0.12); color: var(--light-gray); padding: 14px 18px; font-family: 'Outfit', sans-serif; font-size: 0.9rem; outline: none; transition: border-color 0.3s; width: 100%; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--cyan); }
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--gray); opacity: 0.6; }
.form-note { font-size: 0.75rem; color: var(--gray); font-family: 'JetBrains Mono', monospace; }
.file-upload { display: flex; align-items: center; gap: 12px; padding: 14px 18px; background: var(--deep); border: 1px dashed rgba(0,207,213,0.2); cursor: pointer; transition: border-color 0.3s; }
.file-upload:hover { border-color: var(--cyan); }
.file-upload svg { width: 28px; height: 28px; stroke: var(--cyan); fill: none; stroke-width: 1.5; }
.file-upload span { font-size: 0.85rem; color: var(--gray); }
.file-upload input { display: none; }

/* --- Requisites Block --- */
.requisites-block { margin-top: 32px; padding: 28px; background: var(--deep); border: 1px solid rgba(0,207,213,0.1); }
.requisites-label { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--cyan); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.requisites-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid rgba(0,207,213,0.05); }
.requisites-row:last-of-type { border-bottom: none; margin-bottom: 20px; }
.req-key { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--gray); letter-spacing: 1px; }
.req-val { font-size: 0.88rem; color: var(--light-gray); text-align: right; }
.btn-requisites { display: flex; align-items: center; gap: 10px; width: 100%; padding: 14px 20px; background: transparent; border: 1px solid var(--cyan); color: var(--cyan); font-family: 'Outfit', sans-serif; font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.3s; letter-spacing: 0.5px; }
.btn-requisites svg { stroke: var(--cyan); fill: none; stroke-width: 1.5; flex-shrink: 0; }
.btn-requisites:hover { background: var(--cyan-dim); transform: translateY(-2px); }

/* --- Modal --- */
.modal-overlay { position: fixed; inset: 0; z-index: 9999; background: rgba(10,25,47,0.85); backdrop-filter: blur(12px); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.35s ease; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-box { background: var(--deep-mid); border: 1px solid rgba(0,207,213,0.15); padding: 48px; max-width: 480px; width: 90%; position: relative; transform: translateY(20px); transition: transform 0.35s ease; }
.modal-overlay.active .modal-box { transform: translateY(0); }
.modal-close { position: absolute; top: 16px; right: 20px; background: none; border: none; color: var(--gray); font-size: 1.8rem; cursor: pointer; line-height: 1; transition: color 0.3s; }
.modal-close:hover { color: var(--cyan); }
.modal-box h3 { font-size: 1.3rem; color: var(--white); margin-bottom: 12px; font-weight: 600; }
.modal-desc { font-size: 0.88rem; color: var(--gray); line-height: 1.6; margin-bottom: 28px; }
.modal-form { display: flex; flex-direction: column; gap: 14px; }
.modal-form input { background: var(--deep); border: 1px solid rgba(0,207,213,0.12); color: var(--light-gray); padding: 14px 18px; font-family: 'Outfit', sans-serif; font-size: 0.9rem; outline: none; transition: border-color 0.3s; width: 100%; }
.modal-form input:focus { border-color: var(--cyan); }
.modal-form input::placeholder { color: var(--gray); opacity: 0.6; }

/* --- Footer --- */
footer { padding: 40px 0; border-top: 1px solid rgba(0,207,213,0.08); }
footer .footer-inner { display: flex; align-items: center; justify-content: center; gap: 16px; }
footer p { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--gray); letter-spacing: 1px; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .software-grid, .analytics-grid, .cases-grid, .ved-grid { grid-template-columns: 1fr 1fr; }
  .industries-wrap, .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links { display: none; position: fixed; top: 0; right: 0; width: 280px; height: 100vh; background: var(--deep-mid); flex-direction: column; padding: 100px 40px; gap: 24px; border-left: 1px solid rgba(0,207,213,0.1); }
  .nav-links.open { display: flex; }
  .software-grid, .analytics-grid, .cases-grid, .ved-grid, .why-grid { grid-template-columns: 1fr; }
  .software-item { border-right: none; border-bottom: 1px solid rgba(0,207,213,0.1); }
  .software-item:last-child { border-bottom: none; }
  .hero-metrics { flex-wrap: wrap; gap: 32px; }
  .form-row { flex-direction: column; }
  section { padding: 80px 0; }
}